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Nosocomial Acinetobacter pneumonia: Treatment and prognostic factors in 356 cases

医学 肺炎 重症监护医学 内科学
作者
Tülay Şener Özvatan,Halis Akalın,Melda Altıkatoğlu Yapaöz,Gökhan Ocakoğlu,Emel Yılmaz,Yasemin Heper,Nermin Kelebek Girgin,Remzi İşçimen,Ferda Kahveci
出处
期刊:Respirology [Wiley]
卷期号:21 (2): 363-369 被引量:42
标识
DOI:10.1111/resp.12698
摘要

Abstract Background and objective A cinetobacter baumannii and A . baumannii/calcoaceticus complex are commonly encountered pathogens in nosocomial infections. This study aimed to evaluate the treatment and prognostic risk factors in nosocomial pneumonia caused by these microorganisms. Methods The study was conducted retrospectively in U ludag U niversity H ospital and included 356 adult non‐neutropenic patients with nosocomial pneumonia. Results Of the subjects, 94.9% ( n = 338) had ventilator‐associated pneumonia. The clinical response rate was 57.2%, the 14‐day mortality 39.6% and the 30‐day mortality 53.1%. The significant independent risk factors for the 30‐day mortality were severe sepsis ( OR , 2.60; 95% CI : 1.49–4.56; P = 0.001), septic shock ( OR , 6.12; 95% CI : 2.75–13.64; P < 0.001), APACHE II score ≥ 20 ( OR , 2.12; 95% CI : 1.28–3.50; P = 0.003) and empiric monotherapy ( OR , 1.63; 95% CI: 1.00–2.64; P = 0.048). Multi‐trauma ( OR , 2.50; 95% CI : 1.11–5.68; P = 0.028) was found to be a protective factor. In patients with a clinical pulmonary infection score ( CPIS ) > 6 on the third day of treatment, both the 14‐ and 30‐day mortality rates were high ( P < 0.001, P < 0.001). Also, the 14‐ and 30‐day mortality rates were significantly higher in the patients treated with empiric monotherapy compared with combination therapy (48/93 (51.6%)–46/123 (37.4%), P = 0.037 and 62/93 (66.7%)–65/123 (52.8%), P = 0.041, respectively) in pneumonia caused by imipenem‐resistant strains. Conclusion Mortality rates were high in pneumonia caused by imipenem‐resistant A . baumannii or A . baumannii/calcoaceticus complex. In the units with a high level of carbapenem resistance, antibiotic combinations should be considered for empiric therapy.
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